I’ve just read a variable resistor’s datasheet claiming is has a resolution that is “essentially infinite”. Perhaps we can somehow use this device to break Heisenberg’s uncertainty principle and perform some other sorts of witchcraft.
I spend a reasonable amount of time in my news aggregator program these days. I want to stay up to date with project changelogs. Subtelty (edit 2012: link now broken — was http://subtlety.errtheblog.com/) provides me with a useful service.
Hello! I am writing this post over a serial line. This is no ordinary serial line. I’m in the garage on my laptop. My laptop is connected to a USB-to-serial device. That device is then connected to an xBee zigbee module. I’ve got a very similar setup on my PC in my room. The zigbee transceiver on my laptop is just out of range of the transceiver on my PC. There is a third xBee module sitting in our lounge. It has it’s receive line connected to it’s transmit line.
I’ve then got a slip connection running over that serial connection, which is 9600 bps. It’s also incredibly latent:
[rob@prefect ~]$ ping -c 5 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_seq=1 ttl=64 time=596 ms 64 bytes from 192.168.2.1: icmp_seq=2 ttl=64 time=596 ms 64 bytes from 192.168.2.1: icmp_seq=3 ttl=64 time=598 ms 64 bytes from 192.168.2.1: icmp_seq=4 ttl=64 time=595 ms 64 bytes from 192.168.2.1: icmp_seq=5 ttl=64 time=596 ms --- 192.168.2.1 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4000ms rtt min/avg/max/mdev = 595.813/596.868/598.809/1.156 ms [rob@prefect ~]$
These xBee modules are cool!
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